PREXISO 265Ft Rechargeable Laser Measure w/Multi-Measurement Units M/in/Ft steel

3-5 hours long battery lasting. Device will automatic shutdown without operation 120s, more energy-saving. Class II laser product, output < 1mW. 【PORTABLE and DURABLE 】With a portable size(4.7 1.9 1.0 in), you can put the laser tool in your pocket or tools bags.